If your interface shows flashing red lights or "Interface Not Found" errors, it likely suffered a failed firmware update or a software-induced block.
For further assistance with specific files, communities like MHH AUTO or Reddit's CarHacking often host dedicated repair kits and loaders.
Completely delete all existing VCDS drivers and files from your PC.
After copying the loader into the installation folder and creating a new desktop shortcut, I plugged the cable back in. I held my breath during the self-test. Port Status: OK Interface: Found!
Clones often require a "Loader" (such as Loader 9.2 or similar archives found on forums like MHH Auto) to function.